Ch-technology UFB200FA40P Bedienungsanleitung PDF herunterladen (Seite 5)

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Document Number: 94088

4 Revision: 25-Apr-08

UFB200FA40P

Vishay High Power Products

Insulated Ultrafast

Rectifier Module, 230 A

Fig. 5 - Maximum Allowable Case Temperature vs.

Avarage Forward Current (Per Leg)

Fig. 6 - Forward Power Loss Characteristics (Per Leg)

Fig. 7 - Typical Reverse Recovery Time vs. dI

/dt

Fig. 8 - Typical Stored Charge vs. dI

/dt

Note

(1)

Formula used: T

= T

- (Pd + Pd

REV

) x R

thJC

;

Pd = Forward power loss = I

F(AV)

x V

at (I

F(AV)

/D) (see fig. 6);

REV

= Inverse power loss = V

x I

(1 - D); I

at V

= 80 % rated V

020

Allowable Case Temperature (°C)

F(AV)

- Average Forward Current (A)

130

140

150

See note (1)

100

40 60

Square wave (D = 0.50)

Rated V

applied

100

160

80 120

110

120

140

040

Average Power Loss (W)

F(AV)

- Average Forward Current (A)

D = 0.01

D = 0.02

D = 0.05

D = 0.10

D = 0.20

D = 0.50

20 80

120

160

120

160

100

140

100

140

RMS limit

100 1000

(ns)

/dt (A/µs)

100

200

= 200 V

= 125 °C

= 25 °C

150

250

= 150 A

= 75 A

100 1000

(nC)

/dt (A/µs)

1000

5000

3500

= 200 V

= 125 °C

= 25 °C

2500

4000

500

1500

3000

2000

4500

= 150 A

= 75 A

1 2 3 4 5 6 7 8

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